Abstract:
Embodiments provide an apparatus, a method and a computer program for the transceiver of a mobile communication system. The apparatus (10) is operable in a first transceiver (100) of a mobile communication system. The apparatus (10) comprises a transceiver module (12) comprising interfaces to a plurality of transmit antennas (15). The transceiver module (12) is operable to subdivide the plurality of transmit antennas (15) in a plurality of subgroups using the interfaces, and to form a set of first beam patterns (16) using one or more transmit antennas of a subgroup. The apparatus (10) further comprises a control module (14) operable to determine information related to a quality of a radio link between the first transceiver (100) and the second transceiver (200). The control module (14) is further operable to determine a second beam pattern (18) for communicating with the second transceiver (200) using two or more beam patterns from the set of first beam patterns (16). A number of first beam patterns used to determine the second beam pattern (18) is based on the information related to the quality of the radio link between the first transceiver (100) and the second transceiver (200). The control module (14) is further operable to communicate with the second transceiver (200) using the second beam pattern (18) and the transceiver module (12).
Abstract:
Embodiments provide beamforming apparatuses, methods and a computer programs for a base station transceiver and a mobile transceiver. An apparatus (10) operable in a base station transceiver (100) of a mobile communication system comprises a transceiver module (12) comprising interfaces to a plurality (15) of antennas. The transceiver module (12) is operable to subdivide the plurality (15) of antennas in a plurality of subgroups using the interfaces, and to form a first beam pattern (16) using one or more antennas of a subgroup. The apparatus (10) further comprises a control module (14), which is operable to transmit a synchronization signal using the transceiver module (12) and the first beam pattern (16). The control module (14) is further operable to receive a response signal after transmission of the synchronization signal from a mobile transceiver (200) using the transceiver module (12), to determine a second beam pattern (18) based on the response signal from the mobile transceiver (200). The second beam pattern (18) has a higher antenna gain than the first beam pattern (16), and to transmit a signal to the mobile transceiver (200) using the second beam pattern (18) and the transceiver module (12). An apparatus (20) operable in a mobile transceiver (200) of a mobile communication system comprises a transceiver module (22) comprising interfaces to a plurality of antennas (25), and a control module (24) operable to determine a first set of beam patterns (26) based on the plurality of antennas (25), to receive a signal from a base station transceiver (100) using a first beam pattern from the first set of beam patterns (26) using the transceiver module (22). The control module (24) is further operable to determine a second set of beam patterns (28) based on the plurality of antennas (25), the second set of beam patterns (28) comprising more beam patterns than the first set of beam patterns (26), and to transmit a signal to the base station transceiver (100) using a second beam pattern from the set of second beam patterns (28) and using the transceiver module (22).
Abstract:
The invention relates to a method (MET-T) for transmitting channel feedback information in a wireless communication system. The method (MET-T) contains the steps of determining (M1/5) a first reception quality value (CQI 1) for a first radio channel from a first transmission point (2a) of the radio communication system to an apparatus (4), determining (M1/7) based on the first reception quality value (CQI 1) a preferred use of the first radio channel (6a), and transmitting (M1/8) towards the first transmission point (2a) the first reception quality value (CQI 1) and the first reception quality value (CQI 1) simultaneously indicates the preferred use. The invention further relates to an apparatus for transmitting channel feedback information in the wireless communication system and to a method (MET-R) and apparatus (8) for receiving the channel feedback information in the wireless communication system.
Abstract:
Examples relate to a method for a mobile communication system. The mobile communication system includes a base station communicating with a plurality of associated mobile stations using a downlink radio frame comprising a plurality of subframes. Further, the method includes generating a master sub-frame of the downlink radio frame by the base station. The master sub-frame includes scheduling information indicating which of the mobile stations are candidates for scheduling in sub-frames other than the master sub-frame of the downlink radio frame, and which of the mobile stations are scheduled by the base station in the master sub-frame. Additionally, the method includes transmitting the master sub-frame to the plurality of associated mobile stations by the base station. Further, the method includes reading the scheduling information of the master sub-frame by at least one mobile station of the plurality of associated mobile stations. Additionally, the method includes processing, based on the scheduling information of the master sub-frame, at least a portion of the sub-frames of the downlink radio frame for which the at least one mobile station is scheduled or is a candidate for scheduling by the at least one mobile station.
Abstract:
The invention relates to a method (MET-T) for transmitting channel feedback information in a wireless communication system. The method (MET-T) contains the steps of determining (M1/5) a first reception quality value (CQI 1) for a first radio channel from a first transmission point (2a) of the radio communication system to an apparatus (4), determining (M1/7) based on the first reception quality value (CQI 1) a preferred use of the first radio channel (6a), and transmitting (M1/8) towards the first transmission point (2a) the first reception quality value (CQI 1) and the first reception quality value (CQI 1) simultaneously indicates the preferred use. The invention further relates to an apparatus for transmitting channel feedback information in the wireless communication system and to a method (MET-R) and apparatus (8) for receiving the channel feedback information in the wireless communication system.